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Area of ​​a triangle using Heron's formula

calculator calculates the area of ​​a triangle after a length of three sides.                


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Weighted average ratings

The calculator calculates the weighted average of the ratings of the following items.              
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Conversion between number bases

Converter allows you to convert numbers between number bases - binary (binary), trójkowym, czwórkowym, Friday, szóstkowym, siódemkowym, octal (octal), dziewiątkowym, decimal (decymalnym) jedenastkowym, dwunastkowym, trzynastkowym, czternastkowym, piętnastkowym, hexadecimal (hex). Typed characters that are not numbers and the letters A, B, C, D, E, F are ignored.      
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Trigonometric functions calculator

Calculator by entering an angle in degrees or radians calculated values ​​of the basic trigonometric functions.
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BMR Calculator - Basic Metabolic - PPM

Jak obliczyć wskaźnik BMR / PPM ?
The calculator calculates the BMR (Basal Metabolic Rate). BMR - the lowest rate of metabolism that occur in the human body, necessary to sustain basic life functions, which is located in standby mode under complete peace of physical and mental comfort that the 12 hours before the test, do not eat any meals, after 3 days of diet and protein-free after at least eight hours of sleep.
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Insulation of wall

Jak policzyć izolację ścian?
Calculator allows you to calculate the amount of insulation panels needed to cover the walls of the building using the "light wet" or "dry light" methods.
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Rainwater tank

The calculator calculates the amount of collected rainwater from the roof of the given dimensions. Long description      
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Calculator degrees Plato / Brix

The calculator calculates the sugar content of a drink in degrees Plato and Brix and the volume of alcohol in the solution based on the relative density of the solution.  
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Verification of the ISSN

Calculator allows you to verify the number entered ISSN (International Standard Serial Number serial publication). FAQ: How ISSN number?